/* roulang page: index */
:root {
            --primary: #FF6B35;
            --primary-dark: #E55A2B;
            --primary-light: #FF8A5C;
            --secondary: #1E3A5F;
            --secondary-light: #2A5080;
            --accent: #FFD93D;
            --success: #10B981;
            --bg-white: #FFFFFF;
            --bg-light: #F8F9FA;
            --bg-dark: #0F172A;
            --text-primary: #1A1A2E;
            --text-secondary: #6B7280;
            --text-light: #9CA3AF;
            --border-color: #E5E7EB;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow: 0 4px 12px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-white);
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
            transition: var(--transition);
        }

        button {
            cursor: pointer;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-narrow {
            max-width: 960px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-padding {
            padding: 100px 0;
        }

        .section-padding-sm {
            padding: 60px 0;
        }

        .section-title {
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 1.125rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto 48px;
            line-height: 1.8;
        }

        .text-gradient {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(229, 231, 235, 0.6);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.98);
            box-shadow: 0 1px 12px rgba(0, 0, 0, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--secondary);
            letter-spacing: -0.02em;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 700;
        }

        .logo span {
            color: var(--primary);
        }

        .nav-main {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 0;
            position: relative;
            transition: var(--transition);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        .nav-link:hover {
            color: var(--text-primary);
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-link.active::after {
            width: 100%;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border-radius: 100px;
            padding: 0 16px;
            border: 1px solid transparent;
            transition: var(--transition);
            width: 200px;
        }

        .search-box:focus-within {
            border-color: var(--primary);
            background: var(--bg-white);
            box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.1);
        }

        .search-box input {
            padding: 8px 12px 8px 8px;
            background: transparent;
            color: var(--text-primary);
            width: 100%;
            font-size: 0.9rem;
        }

        .search-box input::placeholder {
            color: var(--text-light);
        }

        .search-box .search-icon {
            color: var(--text-light);
            font-size: 0.9rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 24px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: 100px;
            transition: var(--transition);
            border: 2px solid transparent;
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 107, 53, 0.35);
        }
        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline {
            background: transparent;
            color: var(--secondary);
            border-color: var(--border-color);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }

        .btn-white {
            background: #fff;
            color: var(--secondary);
            border-color: #fff;
        }
        .btn-white:hover {
            background: var(--bg-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
        }

        .btn-lg {
            padding: 14px 36px;
            font-size: 1.05rem;
            border-radius: 100px;
        }

        .mobile-menu-btn {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 4px;
            background: none;
            border: none;
            cursor: pointer;
        }

        .mobile-menu-btn span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        .mobile-menu-btn.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .mobile-menu-btn.active span:nth-child(2) {
            opacity: 0;
        }
        .mobile-menu-btn.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Hero ===== */
        .hero {
            padding-top: 72px;
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            background: var(--bg-dark);
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.5;
            z-index: 0;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(30, 58, 95, 0.7) 50%, rgba(255, 107, 53, 0.15) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 820px;
            padding: 80px 24px;
            color: #fff;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(12px);
            padding: 6px 18px;
            border-radius: 100px;
            font-size: 0.85rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.9);
            border: 1px solid rgba(255, 255, 255, 0.15);
            margin-bottom: 24px;
        }

        .hero-badge i {
            color: var(--accent);
        }

        .hero h1 {
            font-size: 4rem;
            font-weight: 900;
            line-height: 1.1;
            letter-spacing: -0.03em;
            margin-bottom: 20px;
        }

        .hero h1 .highlight {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero p {
            font-size: 1.25rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.75);
            max-width: 640px;
            margin-bottom: 36px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 56px;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .hero-stat h3 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
        }

        .hero-stat p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 0;
        }

        /* ===== Features / Core Values ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 40px 32px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 20px;
            color: #fff;
        }

        .feature-icon.orange {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
        }
        .feature-icon.blue {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
        }
        .feature-icon.green {
            background: linear-gradient(135deg, var(--success), #34D399);
        }

        .feature-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .feature-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== Categories ===== */
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .category-card {
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
        }

        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }

        .category-card .cat-img {
            height: 220px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .category-card .cat-img .cat-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.6) 0%, transparent 60%);
        }

        .category-card .cat-body {
            padding: 24px 28px 28px;
        }

        .category-card .cat-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 100px;
            font-size: 0.8rem;
            font-weight: 600;
            background: rgba(255, 107, 53, 0.1);
            color: var(--primary);
            margin-bottom: 12px;
        }

        .category-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .category-card p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .category-card .cat-link {
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.92rem;
        }

        .category-card .cat-link i {
            transition: var(--transition);
        }
        .category-card .cat-link:hover i {
            transform: translateX(4px);
        }

        /* ===== CMS News / Latest ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .news-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
            border-color: transparent;
        }

        .news-card .news-img {
            height: 200px;
            background-size: cover;
            background-position: center;
            flex-shrink: 0;
        }

        .news-card .news-body {
            padding: 24px 28px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-card .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--text-light);
            margin-bottom: 12px;
        }

        .news-card .news-meta .news-cat {
            background: rgba(30, 58, 95, 0.08);
            color: var(--secondary);
            padding: 2px 12px;
            border-radius: 100px;
            font-weight: 500;
        }

        .news-card .news-meta .news-date {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .news-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 10px;
            flex: 1;
        }

        .news-card h3 a {
            color: var(--text-primary);
        }
        .news-card h3 a:hover {
            color: var(--primary);
        }

        .news-card .news-excerpt {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .empty-news {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            color: var(--text-light);
            font-size: 1.05rem;
            background: var(--bg-light);
            border-radius: var(--radius);
        }

        /* ===== Stats / Numbers ===== */
        .stats-section {
            background: var(--secondary);
            color: #fff;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }

        .stat-item h2 {
            font-size: 3rem;
            font-weight: 900;
            letter-spacing: -0.03em;
            background: linear-gradient(135deg, var(--accent), #fff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .stat-item p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 8px;
        }

        .stat-item .stat-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 12px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(255, 107, 53, 0.2);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 28px;
            font-weight: 600;
            font-size: 1.05rem;
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            color: var(--text-primary);
            gap: 16px;
        }

        .faq-question i {
            color: var(--primary);
            font-size: 0.9rem;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 28px 20px;
            color: var(--text-secondary);
            line-height: 1.8;
            display: none;
            font-size: 0.95rem;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary) 0%, #0F172A 100%);
            color: #fff;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 2.8rem;
            font-weight: 900;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 540px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }

        .cta-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 32px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 40px;
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-brand .logo span {
            color: var(--primary);
        }

        .footer-brand p {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-col ul li a {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }

        .footer-social {
            display: flex;
            gap: 16px;
        }

        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.5);
            font-size: 1rem;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 3rem;
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .categories-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .nav-main {
                display: none;
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 24px 32px 32px;
                gap: 20px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-lg);
            }

            .nav-main.open {
                display: flex;
            }

            .nav-link {
                font-size: 1.1rem;
                padding: 8px 0;
            }

            .nav-actions {
                width: 100%;
                flex-direction: column;
                gap: 12px;
            }

            .search-box {
                width: 100%;
            }

            .mobile-menu-btn {
                display: flex;
            }

            .hero {
                min-height: auto;
                padding: 100px 0 60px;
            }

            .hero h1 {
                font-size: 2.4rem;
            }

            .hero p {
                font-size: 1.05rem;
            }

            .hero-stats {
                flex-direction: column;
                gap: 24px;
                margin-top: 36px;
                padding-top: 28px;
            }

            .section-padding {
                padding: 60px 0;
            }

            .section-title {
                font-size: 2rem;
            }

            .features-grid {
                grid-template-columns: 1fr;
            }

            .categories-grid {
                grid-template-columns: 1fr;
            }

            .news-grid {
                grid-template-columns: 1fr;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .cta-section h2 {
                font-size: 2rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .hero h1 {
                font-size: 1.8rem;
            }

            .hero-actions {
                flex-direction: column;
                width: 100%;
            }

            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }

            .section-title {
                font-size: 1.6rem;
            }

            .stat-item h2 {
                font-size: 2rem;
            }

            .stat-item p {
                font-size: 0.85rem;
            }

            .faq-question {
                padding: 16px 20px;
                font-size: 0.95rem;
            }

            .faq-answer {
                padding: 0 20px 16px;
                font-size: 0.9rem;
            }

            .news-card .news-body {
                padding: 18px 20px 22px;
            }

            .category-card .cat-body {
                padding: 18px 20px 22px;
            }

            .feature-card {
                padding: 28px 22px;
            }

            .cta-section h2 {
                font-size: 1.6rem;
            }

            .cta-actions {
                flex-direction: column;
                width: 100%;
            }

            .cta-actions .btn {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== Utility Animations ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .delay-100 {
            transition-delay: 0.1s;
        }
        .delay-200 {
            transition-delay: 0.2s;
        }
        .delay-300 {
            transition-delay: 0.3s;
        }
        .delay-400 {
            transition-delay: 0.4s;
        }

        .bg-pattern-dots {
            background-image: radial-gradient(rgba(255, 107, 53, 0.08) 1px, transparent 1px);
            background-size: 20px 20px;
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #D4292F;
            --primary-dark: #B01E23;
            --primary-light: #FDE8E9;
            --secondary: #1A1A2E;
            --secondary-light: #2D2D44;
            --accent: #F5A623;
            --accent-light: #FFF3E0;
            --bg-body: #F8F9FC;
            --bg-white: #FFFFFF;
            --bg-gray: #F1F3F8;
            --bg-dark: #0F0F1A;
            --text-primary: #1A1A2E;
            --text-secondary: #4A4A6A;
            --text-muted: #8A8AA0;
            --text-white: #FFFFFF;
            --border: #E2E5F0;
            --border-light: #F0F2F7;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow: 0 8px 30px rgba(0,0,0,0.06);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.08);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        button { cursor: pointer; font-family: inherit; border: none; background: none; }
        input, textarea { font-family: inherit; outline: none; border: none; }
        ul { list-style: none; }

        /* ===== Container ===== */
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        @media (max-width: 768px) { .container { padding: 0 16px; } }

        /* ===== Navbar ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            background: rgba(255,255,255,0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .site-header.scrolled { box-shadow: var(--shadow); }
        .nav-inner {
            display: flex; align-items: center; justify-content: space-between;
            height: 72px; gap: 32px;
        }
        .logo {
            display: flex; align-items: center; gap: 10px;
            font-size: 24px; font-weight: 800; color: var(--text-primary);
            letter-spacing: -0.5px; flex-shrink: 0;
        }
        .logo .logo-icon {
            width: 40px; height: 40px; background: var(--primary);
            color: white; border-radius: 10px; display: flex; align-items: center; justify-content: center;
            font-size: 20px; font-weight: 700;
        }
        .logo span { color: var(--primary); font-weight: 700; }
        .nav-main { display: flex; align-items: center; gap: 6px; flex: 1; justify-content: center; }
        .nav-main .nav-link {
            padding: 8px 18px; border-radius: var(--radius-sm);
            font-size: 15px; font-weight: 500; color: var(--text-secondary);
            transition: var(--transition); position: relative; white-space: nowrap;
        }
        .nav-main .nav-link:hover { color: var(--primary); background: var(--primary-light); }
        .nav-main .nav-link.active { color: var(--primary); background: var(--primary-light); font-weight: 600; }
        .nav-actions { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
        .search-box {
            display: flex; align-items: center; gap: 8px;
            background: var(--bg-gray); border-radius: 24px; padding: 8px 18px;
            border: 1px solid transparent; transition: var(--transition); width: 200px;
        }
        .search-box:focus-within { border-color: var(--primary); background: white; box-shadow: 0 0 0 3px rgba(212,41,47,0.1); }
        .search-box .search-icon { color: var(--text-muted); font-size: 14px; }
        .search-box input { background: transparent; font-size: 14px; color: var(--text-primary); width: 100%; }
        .search-box input::placeholder { color: var(--text-muted); }
        .btn {
            display: inline-flex; align-items: center; justify-content: center; gap: 8px;
            padding: 10px 24px; border-radius: 24px; font-size: 15px; font-weight: 600;
            transition: var(--transition); white-space: nowrap; border: none;
        }
        .btn-primary { background: var(--primary); color: white; }
        .btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 25px rgba(212,41,47,0.3); }
        .btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
        .btn-outline:hover { background: var(--primary); color: white; transform: translateY(-2px); }
        .btn-white { background: white; color: var(--primary); }
        .btn-white:hover { background: var(--bg-gray); transform: translateY(-2px); box-shadow: var(--shadow); }
        .btn-accent { background: var(--accent); color: var(--text-primary); }
        .btn-accent:hover { background: #E69510; transform: translateY(-2px); box-shadow: 0 8px 25px rgba(245,166,35,0.3); }
        .btn-sm { padding: 6px 16px; font-size: 13px; border-radius: 20px; }

        /* Mobile menu */
        .menu-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; cursor: pointer; background: none; border: none; }
        .menu-toggle span { width: 24px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: var(--transition); }
        @media (max-width: 1024px) {
            .nav-main { gap: 4px; }
            .nav-main .nav-link { padding: 6px 12px; font-size: 14px; }
            .search-box { width: 140px; }
        }
        @media (max-width: 768px) {
            .menu-toggle { display: flex; }
            .nav-main {
                position: fixed; top: 72px; left: 0; right: 0; bottom: 0;
                background: rgba(255,255,255,0.98); backdrop-filter: blur(20px);
                flex-direction: column; align-items: flex-start; padding: 32px 24px; gap: 8px;
                transform: translateX(100%); transition: var(--transition); justify-content: flex-start;
                z-index: 999; overflow-y: auto;
            }
            .nav-main.open { transform: translateX(0); }
            .nav-main .nav-link { width: 100%; padding: 14px 16px; font-size: 16px; border-radius: var(--radius-sm); }
            .nav-actions { flex-direction: column; width: 100%; gap: 12px; margin-top: 16px; }
            .search-box { width: 100%; }
            .nav-actions .btn { width: 100%; justify-content: center; padding: 12px; }
            .nav-inner { height: 64px; }
        }

        /* ===== Banner ===== */
        .page-banner {
            padding: 140px 0 80px; position: relative; overflow: hidden;
            background: linear-gradient(135deg, var(--secondary) 0%, #0F0F1A 100%);
        }
        .page-banner::before {
            content: ''; position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.15; mix-blend-mode: overlay;
        }
        .page-banner .container { position: relative; z-index: 2; }
        .banner-badge {
            display: inline-flex; align-items: center; gap: 6px;
            background: rgba(212,41,47,0.2); color: #FF6B70; padding: 6px 16px;
            border-radius: 20px; font-size: 13px; font-weight: 500; margin-bottom: 16px;
            backdrop-filter: blur(10px); border: 1px solid rgba(212,41,47,0.2);
        }
        .banner-title { font-size: 48px; font-weight: 800; color: white; line-height: 1.15; margin-bottom: 16px; }
        .banner-title span { color: var(--accent); }
        .banner-desc { font-size: 18px; color: rgba(255,255,255,0.7); max-width: 600px; line-height: 1.7; margin-bottom: 32px; }
        .banner-actions { display: flex; gap: 12px; flex-wrap: wrap; }
        @media (max-width: 768px) {
            .page-banner { padding: 120px 0 60px; }
            .banner-title { font-size: 32px; }
            .banner-desc { font-size: 16px; }
        }

        /* ===== Section ===== */
        .section { padding: 80px 0; }
        .section-alt { background: var(--bg-white); }
        .section-gray { background: var(--bg-gray); }
        .section-dark { background: var(--bg-dark); color: white; }
        .section-title { font-size: 36px; font-weight: 800; color: var(--text-primary); margin-bottom: 12px; line-height: 1.2; }
        .section-title span { color: var(--primary); }
        .section-subtitle { font-size: 17px; color: var(--text-muted); max-width: 600px; margin-bottom: 48px; line-height: 1.6; }
        .section-dark .section-title { color: white; }
        .section-dark .section-subtitle { color: rgba(255,255,255,0.6); }
        .text-center { text-align: center; }
        .mx-auto { margin-left: auto; margin-right: auto; }

        @media (max-width: 768px) {
            .section { padding: 56px 0; }
            .section-title { font-size: 28px; }
            .section-subtitle { font-size: 15px; margin-bottom: 32px; }
        }

        /* ===== Cards ===== */
        .card {
            background: white; border-radius: var(--radius);
            box-shadow: var(--shadow-sm); border: 1px solid var(--border-light);
            transition: var(--transition); overflow: hidden;
        }
        .card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
        .card-img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
        .card-body { padding: 24px; }
        .card-tag {
            display: inline-block; background: var(--primary-light); color: var(--primary);
            padding: 4px 12px; border-radius: 12px; font-size: 12px; font-weight: 600;
            margin-bottom: 10px;
        }
        .card-title { font-size: 18px; font-weight: 700; margin-bottom: 8px; color: var(--text-primary); }
        .card-desc { font-size: 14px; color: var(--text-muted); line-height: 1.6; margin-bottom: 16px; }
        .card-meta { display: flex; align-items: center; gap: 16px; font-size: 13px; color: var(--text-muted); }
        .card-meta i { width: 14px; }

        /* ===== Grid ===== */
        .grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
        .grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
        .grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: 24px; }
        @media (max-width: 1024px) {
            .grid-4 { grid-template-columns: repeat(2,1fr); }
            .grid-3 { grid-template-columns: repeat(2,1fr); }
        }
        @media (max-width: 768px) {
            .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; gap: 16px; }
        }

        /* ===== Feature Card (icon top) ===== */
        .feature-card {
            background: white; border-radius: var(--radius); padding: 32px 24px;
            text-align: center; border: 1px solid var(--border-light);
            transition: var(--transition); box-shadow: var(--shadow-sm);
        }
        .feature-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
        .feature-icon {
            width: 64px; height: 64px; border-radius: 18px;
            display: flex; align-items: center; justify-content: center;
            margin: 0 auto 20px; font-size: 28px; color: white;
        }
        .feature-icon.red { background: var(--primary); }
        .feature-icon.blue { background: #3B82F6; }
        .feature-icon.green { background: #10B981; }
        .feature-icon.amber { background: var(--accent); }
        .feature-icon.purple { background: #8B5CF6; }
        .feature-icon.teal { background: #14B8A6; }
        .feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
        .feature-card p { font-size: 14px; color: var(--text-muted); line-height: 1.6; }

        /* ===== Badge / Stat ===== */
        .stat-card {
            text-align: center; padding: 24px; background: rgba(255,255,255,0.06);
            border-radius: var(--radius); border: 1px solid rgba(255,255,255,0.1);
            backdrop-filter: blur(10px);
        }
        .stat-number { font-size: 42px; font-weight: 800; color: var(--accent); line-height: 1; margin-bottom: 6px; }
        .stat-label { font-size: 15px; color: rgba(255,255,255,0.7); }

        /* ===== FAQ ===== */
        .faq-item {
            background: white; border-radius: var(--radius-sm);
            border: 1px solid var(--border-light); overflow: hidden;
            transition: var(--transition); margin-bottom: 12px;
        }
        .faq-item:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); }
        .faq-question {
            padding: 20px 24px; display: flex; align-items: center; justify-content: space-between;
            font-size: 16px; font-weight: 600; color: var(--text-primary); cursor: pointer;
            gap: 16px;
        }
        .faq-question i { color: var(--primary); transition: var(--transition); font-size: 14px; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px; max-height: 0; overflow: hidden;
            transition: var(--transition); font-size: 15px; color: var(--text-muted); line-height: 1.7;
        }
        .faq-item.open .faq-answer { padding: 0 24px 20px; max-height: 300px; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, #B01E23 100%);
            padding: 80px 0; position: relative; overflow: hidden;
        }
        .cta-section::before {
            content: ''; position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.08; mix-blend-mode: overlay;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-title { font-size: 36px; font-weight: 800; color: white; margin-bottom: 12px; }
        .cta-desc { font-size: 17px; color: rgba(255,255,255,0.8); max-width: 540px; margin-bottom: 32px; }
        .cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }
        @media (max-width: 768px) {
            .cta-section { padding: 56px 0; }
            .cta-title { font-size: 28px; }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark); color: rgba(255,255,255,0.7);
            padding: 64px 0 0; font-size: 15px;
        }
        .footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
        .footer-brand .logo { color: white; font-size: 22px; margin-bottom: 16px; display: inline-flex; }
        .footer-brand .logo span { color: var(--primary); }
        .footer-brand p { color: rgba(255,255,255,0.5); line-height: 1.7; max-width: 300px; }
        .footer-col h4 { font-size: 16px; font-weight: 700; color: white; margin-bottom: 20px; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { color: rgba(255,255,255,0.5); transition: var(--transition); display: inline-flex; align-items: center; gap: 8px; }
        .footer-col ul li a:hover { color: var(--primary); transform: translateX(4px); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 24px 0; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
            font-size: 14px; color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--primary); }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.06);
            display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.5);
            transition: var(--transition); font-size: 16px;
        }
        .footer-social a:hover { background: var(--primary); color: white; transform: translateY(-2px); }
        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .footer-brand { grid-column: 1 / -1; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; }
        }

        /* ===== Subcategory Tabs ===== */
        .sub-tabs {
            display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 40px;
            justify-content: center;
        }
        .sub-tab {
            padding: 10px 24px; border-radius: 24px; font-size: 15px; font-weight: 500;
            background: var(--bg-white); color: var(--text-secondary);
            border: 1px solid var(--border); cursor: pointer; transition: var(--transition);
        }
        .sub-tab:hover { border-color: var(--primary); color: var(--primary); }
        .sub-tab.active { background: var(--primary); color: white; border-color: var(--primary); box-shadow: 0 4px 15px rgba(212,41,47,0.2); }

        /* ===== Guide list ===== */
        .guide-item {
            display: flex; gap: 24px; padding: 24px; background: white;
            border-radius: var(--radius-sm); border: 1px solid var(--border-light);
            transition: var(--transition); align-items: flex-start;
        }
        .guide-item:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
        .guide-num {
            font-size: 32px; font-weight: 800; color: var(--primary); opacity: 0.3;
            line-height: 1; flex-shrink: 0; min-width: 48px;
        }
        .guide-content h4 { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
        .guide-content p { font-size: 14px; color: var(--text-muted); line-height: 1.6; }
        @media (max-width: 768px) {
            .guide-item { flex-direction: column; gap: 12px; }
            .guide-num { font-size: 24px; }
        }

        /* ===== Animations ===== */
        .fade-up { opacity: 0; transform: translateY(30px); transition: all 0.6s ease-out; }
        .fade-up.show { opacity: 1; transform: translateY(0); }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            display: flex; align-items: center; gap: 8px; font-size: 14px;
            color: rgba(255,255,255,0.5); margin-bottom: 20px; flex-wrap: wrap;
        }
        .breadcrumb a { color: rgba(255,255,255,0.6); }
        .breadcrumb a:hover { color: white; }
        .breadcrumb span { color: rgba(255,255,255,0.8); }
        .breadcrumb i { font-size: 10px; color: rgba(255,255,255,0.3); }

        /* ===== Tag cloud ===== */
        .tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
        .tag {
            display: inline-block; padding: 6px 14px; border-radius: 16px;
            font-size: 13px; font-weight: 500; background: var(--bg-gray);
            color: var(--text-secondary); transition: var(--transition);
        }
        .tag:hover { background: var(--primary-light); color: var(--primary); transform: translateY(-1px); }

        /* ===== Responsive extras ===== */
        @media (max-width: 520px) {
            .banner-actions .btn { width: 100%; justify-content: center; }
            .cta-actions .btn { width: 100%; justify-content: center; }
        }

/* roulang page: article */
:root {
            --primary: #1d4ed8;
            --primary-light: #3b82f6;
            --primary-dark: #1e3a8a;
            --primary-bg: #eff6ff;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --accent-dark: #d97706;
            --bg: #f8fafc;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --text: #0f172a;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
            --shadow-lg: 0 10px 30px rgba(0,0,0,0.1);
            --transition: 0.2s ease;
            --nav-height: 72px;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
            font-size: 16px; line-height: 1.7; color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased;
        }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        .container-narrow { max-width: 800px; margin: 0 auto; padding: 0 24px; }

        .site-header {
            position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,0.95); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border); height: var(--nav-height); display: flex; align-items: center;
        }
        .header-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; }
        .logo {
            display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 800; color: var(--text); letter-spacing: -0.3px;
        }
        .logo:hover { color: var(--text); }
        .logo-icon {
            width: 36px; height: 36px; background: var(--primary); color: #fff; border-radius: 8px;
            display: flex; align-items: center; justify-content: center; font-size: 18px; font-weight: 700;
        }
        .logo span { color: var(--primary); font-weight: 700; }
        .nav-main { display: flex; align-items: center; gap: 32px; }
        .nav-link {
            font-size: 15px; font-weight: 500; color: var(--text-secondary); padding: 6px 0; border-bottom: 2px solid transparent;
            transition: all var(--transition); position: relative;
        }
        .nav-link:hover { color: var(--primary); }
        .nav-link.active { color: var(--primary); border-bottom-color: var(--primary); }
        .nav-actions { display: flex; align-items: center; gap: 16px; }
        .search-box {
            display: flex; align-items: center; background: var(--bg); border: 1px solid var(--border); border-radius: 20px;
            padding: 0 16px; height: 38px; width: 200px; transition: all var(--transition);
        }
        .search-box:focus-within { border-color: var(--primary-light); box-shadow: 0 0 0 3px rgba(59,130,246,0.15); width: 240px; }
        .search-icon { color: var(--text-muted); font-size: 14px; margin-right: 8px; }
        .search-box input { border: none; background: transparent; outline: none; font-size: 14px; color: var(--text); width: 100%; }
        .search-box input::placeholder { color: var(--text-muted); }
        .btn {
            display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-size: 14px; font-weight: 600;
            padding: 10px 24px; border-radius: 8px; border: none; cursor: pointer; transition: all var(--transition);
            line-height: 1.2; white-space: nowrap;
        }
        .btn-primary { background: var(--primary); color: #fff; }
        .btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-md); }
        .btn-primary:active { transform: translateY(0); }
        .btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
        .btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-1px); }
        .btn-accent { background: var(--accent); color: #fff; }
        .btn-accent:hover { background: var(--accent-dark); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-md); }
        .btn-sm { padding: 6px 16px; font-size: 13px; border-radius: 6px; }
        .btn-lg { padding: 14px 36px; font-size: 16px; border-radius: 10px; }

        .mobile-toggle { display: none; font-size: 24px; color: var(--text); background: none; border: none; cursor: pointer; padding: 4px; }

        .page-banner {
            padding: 48px 0 32px; background: var(--bg-white); border-bottom: 1px solid var(--border-light);
        }
        .page-banner .breadcrumb {
            font-size: 14px; color: var(--text-muted); margin-bottom: 20px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
        }
        .page-banner .breadcrumb a { color: var(--text-secondary); }
        .page-banner .breadcrumb a:hover { color: var(--primary); }
        .page-banner .breadcrumb span { color: var(--text-muted); }
        .page-banner .breadcrumb .sep { color: var(--text-muted); }
        .article-header { max-width: 800px; margin: 0 auto; }
        .article-category {
            display: inline-block; background: var(--primary-bg); color: var(--primary); font-size: 13px; font-weight: 600;
            padding: 4px 14px; border-radius: 20px; margin-bottom: 16px;
        }
        .article-title {
            font-size: 36px; font-weight: 800; line-height: 1.3; color: var(--text); margin-bottom: 16px; letter-spacing: -0.5px;
        }
        .article-meta {
            display: flex; align-items: center; gap: 24px; font-size: 14px; color: var(--text-muted); flex-wrap: wrap;
        }
        .article-meta i { margin-right: 6px; }
        .article-meta .meta-item { display: flex; align-items: center; }

        .article-cover {
            margin: 32px auto 0; max-width: 800px; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-md);
        }
        .article-cover img { width: 100%; height: auto; aspect-ratio: 16/9; object-fit: cover; }

        .article-body-wrap { padding: 40px 0 48px; background: var(--bg-white); }
        .article-body {
            max-width: 800px; margin: 0 auto; font-size: 16px; line-height: 1.9; color: var(--text);
        }
        .article-body h2 { font-size: 24px; font-weight: 700; margin: 32px 0 16px; color: var(--text); }
        .article-body h3 { font-size: 20px; font-weight: 600; margin: 28px 0 12px; color: var(--text); }
        .article-body p { margin-bottom: 20px; }
        .article-body ul, .article-body ol { margin-bottom: 20px; padding-left: 24px; }
        .article-body li { margin-bottom: 8px; }
        .article-body blockquote {
            border-left: 4px solid var(--primary); background: var(--primary-bg); padding: 16px 24px; margin: 24px 0; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--text-secondary);
        }
        .article-body img { border-radius: var(--radius-sm); margin: 24px 0; }
        .article-body a { color: var(--primary); text-decoration: underline; }
        .article-body a:hover { color: var(--primary-dark); }
        .article-body pre {
            background: #1e293b; color: #e2e8f0; padding: 20px; border-radius: var(--radius-sm); overflow-x: auto; font-size: 14px; line-height: 1.6; margin: 24px 0;
        }
        .article-body code { font-family: "SF Mono", "Fira Code", monospace; font-size: 14px; }
        .article-body table { width: 100%; border-collapse: collapse; margin: 24px 0; }
        .article-body th, .article-body td { padding: 12px 16px; border: 1px solid var(--border); text-align: left; }
        .article-body th { background: var(--bg); font-weight: 600; }

        .article-footer-bar {
            max-width: 800px; margin: 32px auto 0; padding-top: 24px; border-top: 1px solid var(--border-light);
            display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px;
        }
        .article-tags { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
        .article-tags .tag {
            background: var(--bg); color: var(--text-secondary); font-size: 13px; padding: 4px 14px; border-radius: 16px; border: 1px solid var(--border); transition: all var(--transition);
        }
        .article-tags .tag:hover { background: var(--primary-bg); color: var(--primary); border-color: var(--primary-light); }
        .article-share { display: flex; align-items: center; gap: 12px; }
        .article-share a {
            width: 36px; height: 36px; border-radius: 50%; background: var(--bg); border: 1px solid var(--border);
            display: flex; align-items: center; justify-content: center; color: var(--text-secondary); transition: all var(--transition); font-size: 14px;
        }
        .article-share a:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

        .article-nav {
            max-width: 800px; margin: 24px auto 0; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
        }
        .article-nav a {
            font-size: 14px; color: var(--primary); font-weight: 500; display: flex; align-items: center; gap: 6px; transition: all var(--transition);
            max-width: 45%;
        }
        .article-nav a:hover { color: var(--primary-dark); }
        .article-nav .nav-prev i { margin-right: 4px; }
        .article-nav .nav-next i { margin-left: 4px; }
        .article-nav .disabled { color: var(--text-muted); pointer-events: none; }

        .section { padding: 64px 0; }
        .section-title { font-size: 28px; font-weight: 800; text-align: center; margin-bottom: 8px; color: var(--text); }
        .section-subtitle { font-size: 16px; color: var(--text-secondary); text-align: center; margin-bottom: 40px; max-width: 600px; margin-left: auto; margin-right: auto; }
        .section-bg-alt { background: var(--bg-white); }

        .card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 24px; }
        .card {
            background: var(--bg-card); border-radius: var(--radius); border: 1px solid var(--border); overflow: hidden;
            transition: all var(--transition); box-shadow: var(--shadow);
        }
        .card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--border); }
        .card-img { width: 100%; aspect-ratio: 16/10; object-fit: cover; display: block; }
        .card-body { padding: 20px; }
        .card-tag {
            display: inline-block; background: var(--primary-bg); color: var(--primary); font-size: 12px; font-weight: 600;
            padding: 2px 10px; border-radius: 12px; margin-bottom: 10px;
        }
        .card-title { font-size: 18px; font-weight: 700; line-height: 1.4; margin-bottom: 8px; color: var(--text); }
        .card-title a { color: var(--text); }
        .card-title a:hover { color: var(--primary); }
        .card-text { font-size: 14px; color: var(--text-secondary); line-height: 1.6; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .card-meta { font-size: 13px; color: var(--text-muted); display: flex; align-items: center; gap: 16px; }
        .card-meta i { margin-right: 4px; }

        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary)); padding: 64px 0; text-align: center; color: #fff;
        }
        .cta-section h2 { font-size: 32px; font-weight: 800; margin-bottom: 12px; color: #fff; }
        .cta-section p { font-size: 16px; color: rgba(255,255,255,0.85); margin-bottom: 28px; max-width: 560px; margin-left: auto; margin-right: auto; }
        .cta-section .btn { background: var(--accent); color: #fff; font-size: 16px; padding: 14px 40px; border-radius: 10px; }
        .cta-section .btn:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(245,158,11,0.35); }

        .not-found-wrap { text-align: center; padding: 80px 24px; }
        .not-found-wrap .icon { font-size: 56px; color: var(--text-muted); margin-bottom: 16px; }
        .not-found-wrap h2 { font-size: 28px; font-weight: 700; margin-bottom: 12px; }
        .not-found-wrap p { color: var(--text-secondary); margin-bottom: 24px; }

        .site-footer {
            background: #0f172a; color: rgba(255,255,255,0.8); padding: 48px 0 24px;
        }
        .site-footer .logo { color: #fff; margin-bottom: 16px; }
        .site-footer .logo span { color: var(--primary-light); }
        .site-footer .logo-icon { background: var(--primary-light); }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 32px; }
        .footer-brand p { font-size: 14px; color: rgba(255,255,255,0.6); line-height: 1.7; margin-top: 8px; max-width: 320px; }
        .footer-col h4 { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 16px; }
        .footer-col ul { list-style: none; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul a { color: rgba(255,255,255,0.6); font-size: 14px; transition: color var(--transition); }
        .footer-col ul a:hover { color: var(--primary-light); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px;
            font-size: 14px; color: rgba(255,255,255,0.5);
        }
        .footer-bottom a { color: rgba(255,255,255,0.6); }
        .footer-bottom a:hover { color: var(--primary-light); }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.08);
            display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.6); transition: all var(--transition); font-size: 16px;
        }
        .footer-social a:hover { background: var(--primary-light); color: #fff; }

        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .footer-brand { grid-column: 1 / -1; }
        }
        @media (max-width: 768px) {
            .nav-main { display: none; }
            .mobile-toggle { display: block; }
            .nav-main.open { display: flex; flex-direction: column; position: absolute; top: var(--nav-height); left: 0; right: 0; background: var(--bg-white); padding: 16px 24px; border-bottom: 1px solid var(--border); gap: 16px; box-shadow: var(--shadow-md); }
            .nav-main.open .nav-link { border-bottom: none; padding: 8px 0; }
            .nav-main.open .nav-link.active { border-bottom: none; color: var(--primary); }
            .nav-main.open .nav-actions { width: 100%; flex-direction: column; }
            .nav-main.open .search-box { width: 100%; }
            .nav-main.open .btn { width: 100%; }
            .container { padding: 0 16px; }
            .article-title { font-size: 26px; }
            .page-banner { padding: 32px 0 24px; }
            .section { padding: 40px 0; }
            .section-title { font-size: 24px; }
            .card-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .article-nav { flex-direction: column; }
            .article-nav a { max-width: 100%; }
            .article-footer-bar { flex-direction: column; align-items: flex-start; }
            .cta-section h2 { font-size: 26px; }
            .header-inner .search-box { display: none; }
            .nav-main.open .search-box { display: flex; }
        }
        @media (max-width: 520px) {
            .article-title { font-size: 22px; }
            .article-meta { gap: 12px; font-size: 13px; }
            .page-banner { padding: 24px 0 16px; }
            .section { padding: 32px 0; }
            .section-title { font-size: 20px; }
            .btn-lg { padding: 12px 28px; font-size: 15px; }
            .cta-section { padding: 40px 0; }
            .cta-section h2 { font-size: 22px; }
            .not-found-wrap { padding: 48px 16px; }
        }

/* roulang page: category2 */
/* ===== Design Variables ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --bg-light: #f8f9fa;
            --bg-dark: #1a1a2e;
            --bg-card: #ffffff;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a68;
            --text-muted: #8a8aa0;
            --border-light: #e8e8f0;
            --border-radius: 16px;
            --border-radius-sm: 10px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.10);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            color: var(--text-primary);
            background: var(--bg-light);
            line-height: 1.6;
            font-size: 16px;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        ul, ol { list-style: none; }
        button, input, select, textarea { font-family: inherit; font-size: inherit; outline: none; border: none; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        .container-narrow { max-width: 960px; margin: 0 auto; padding: 0 24px; }

        /* ===== Typography ===== */
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--text-primary); }
        .section-title { font-size: 2.25rem; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 0.75rem; }
        .section-subtitle { font-size: 1.1rem; color: var(--text-secondary); max-width: 640px; margin: 0 auto 2.5rem; text-align: center; }
        .text-gradient { background: linear-gradient(135deg, var(--primary), var(--primary-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

        /* ===== Header & Navigation ===== */
        .site-header {
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 0 24px;
            height: 72px;
            display: flex;
            align-items: center;
        }
        .header-inner {
            max-width: 1200px;
            margin: 0 auto;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-primary);
            flex-shrink: 0;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 700;
        }
        .logo span { color: var(--primary); font-weight: 700; }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
        }
        .nav-link {
            padding: 8px 18px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-link:hover { background: rgba(230,57,70,0.08); color: var(--primary); }
        .nav-link.active { background: var(--primary); color: #fff; font-weight: 600; box-shadow: 0 4px 14px rgba(230,57,70,0.3); }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }
        .search-box {
            position: relative;
            display: flex;
            align-items: center;
        }
        .search-box input {
            padding: 8px 16px 8px 40px;
            border-radius: 50px;
            background: var(--bg-light);
            border: 1px solid var(--border-light);
            font-size: 0.9rem;
            width: 200px;
            transition: var(--transition);
            color: var(--text-primary);
        }
        .search-box input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(230,57,70,0.12); width: 240px; }
        .search-icon { position: absolute; left: 14px; color: var(--text-muted); font-size: 0.9rem; pointer-events: none; }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            white-space: nowrap;
        }
        .btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(230,57,70,0.3); }
        .btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(230,57,70,0.4); }
        .btn-secondary { background: var(--secondary); color: #fff; }
        .btn-secondary:hover { background: #15273f; transform: translateY(-2px); }
        .btn-outline { background: transparent; border: 2px solid var(--border-light); color: var(--text-primary); }
        .btn-outline:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
        .btn-white { background: #fff; color: var(--primary); }
        .btn-white:hover { background: var(--bg-light); transform: translateY(-2px); }
        .btn-sm { padding: 6px 18px; font-size: 0.85rem; }

        /* Mobile menu toggle */
        .menu-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; background: none; border: none; }
        .menu-toggle span { width: 26px; height: 2.5px; background: var(--text-primary); border-radius: 4px; transition: var(--transition); }
        .mobile-nav { display: none; }

        /* ===== Hero / Banner ===== */
        .category-hero {
            background: linear-gradient(135deg, var(--secondary) 0%, #0f1a2e 100%);
            padding: 80px 0 60px;
            color: #fff;
            position: relative;
            overflow: hidden;
            min-height: 340px;
            display: flex;
            align-items: center;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .category-hero .container { position: relative; z-index: 1; }
        .category-hero h1 { font-size: 3rem; font-weight: 800; color: #fff; margin-bottom: 1rem; letter-spacing: -0.02em; }
        .category-hero p { font-size: 1.15rem; color: rgba(255,255,255,0.8); max-width: 600px; line-height: 1.7; }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,0.12);
            backdrop-filter: blur(8px);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.9);
            margin-bottom: 1.5rem;
            border: 1px solid rgba(255,255,255,0.08);
        }

        /* ===== Section Spacing ===== */
        .section { padding: 80px 0; }
        .section-alt { background: var(--bg-card); }
        .section-dark { background: var(--bg-dark); color: #fff; }
        .section-sm { padding: 50px 0; }

        /* ===== Cards ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border-light);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
        .card-img { width: 100%; aspect-ratio: 16/10; object-fit: cover; display: block; }
        .card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
        .card-title { font-size: 1.2rem; font-weight: 700; margin-bottom: 8px; color: var(--text-primary); }
        .card-text { font-size: 0.95rem; color: var(--text-secondary); line-height: 1.6; flex: 1; }
        .card-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
        .tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            background: rgba(230,57,70,0.08);
            color: var(--primary);
            transition: var(--transition);
        }
        .tag:hover { background: var(--primary); color: #fff; }
        .tag-secondary { background: rgba(29,53,87,0.08); color: var(--secondary); }
        .tag-secondary:hover { background: var(--secondary); color: #fff; }
        .tag-accent { background: rgba(244,162,97,0.12); color: #b86c2e; }
        .tag-accent:hover { background: var(--accent); color: #fff; }

        /* ===== Grid ===== */
        .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
        .grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
        .grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

        /* ===== Stats / Data Block ===== */
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
        .stat-item { text-align: center; padding: 32px 16px; background: rgba(255,255,255,0.06); border-radius: var(--border-radius); border: 1px solid rgba(255,255,255,0.08); }
        .stat-number { font-size: 2.8rem; font-weight: 800; color: var(--primary-light); line-height: 1.2; }
        .stat-label { font-size: 0.95rem; color: rgba(255,255,255,0.7); margin-top: 6px; }

        /* ===== Timeline / Steps ===== */
        .steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
        .step-item { text-align: center; padding: 32px 20px; position: relative; }
        .step-number { width: 56px; height: 56px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 1.4rem; font-weight: 800; margin: 0 auto 16px; box-shadow: 0 8px 24px rgba(230,57,70,0.25); }
        .step-item h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 6px; }
        .step-item p { font-size: 0.9rem; color: var(--text-secondary); }

        /* ===== FAQ ===== */
        .faq-list { max-width: 800px; margin: 0 auto; }
        .faq-item { border-bottom: 1px solid var(--border-light); padding: 20px 0; }
        .faq-question { display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-weight: 600; font-size: 1.05rem; color: var(--text-primary); gap: 16px; }
        .faq-question i { color: var(--primary); transition: var(--transition); font-size: 1.1rem; flex-shrink: 0; }
        .faq-question.open i { transform: rotate(180deg); }
        .faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.3s ease; padding-top: 0; color: var(--text-secondary); line-height: 1.7; }
        .faq-answer.open { max-height: 300px; padding-top: 14px; }

        /* ===== CTA ===== */
        .cta-section { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); padding: 80px 0; text-align: center; color: #fff; position: relative; overflow: hidden; }
        .cta-section::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-3.png') center/cover no-repeat; opacity: 0.1; mix-blend-mode: overlay; }
        .cta-section .container { position: relative; z-index: 1; }
        .cta-section h2 { font-size: 2.5rem; font-weight: 800; color: #fff; margin-bottom: 1rem; }
        .cta-section p { font-size: 1.15rem; opacity: 0.9; max-width: 560px; margin: 0 auto 2rem; }
        .cta-section .btn-white { box-shadow: 0 8px 30px rgba(0,0,0,0.2); }
        .cta-section .btn-white:hover { transform: translateY(-3px); box-shadow: 0 12px 40px rgba(0,0,0,0.25); }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.8);
            padding: 60px 0 30px;
        }
        .footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand .logo { color: #fff; margin-bottom: 16px; font-size: 1.4rem; }
        .footer-brand .logo span { color: var(--primary-light); }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.6); max-width: 320px; }
        .footer-col h4 { color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: 18px; letter-spacing: 0.5px; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { font-size: 0.9rem; color: rgba(255,255,255,0.6); transition: var(--transition); display: inline-flex; align-items: center; gap: 8px; }
        .footer-col ul li a:hover { color: var(--primary-light); transform: translateX(4px); }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; font-size: 0.85rem; color: rgba(255,255,255,0.5); }
        .footer-bottom a { color: rgba(255,255,255,0.6); }
        .footer-bottom a:hover { color: var(--primary-light); }
        .footer-social { display: flex; gap: 14px; }
        .footer-social a { width: 40px; height: 40px; border-radius: 50%; background: rgba(255,255,255,0.06); display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.6); font-size: 1.1rem; transition: var(--transition); }
        .footer-social a:hover { background: var(--primary); color: #fff; transform: translateY(-3px); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .grid-4 { grid-template-columns: repeat(2, 1fr); }
            .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .search-box input { width: 150px; }
            .search-box input:focus { width: 180px; }
        }

        @media (max-width: 768px) {
            .nav-main { display: none; }
            .menu-toggle { display: flex; }
            .mobile-nav {
                display: block;
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(20px);
                border-bottom: 1px solid var(--border-light);
                padding: 16px 24px;
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                z-index: 99;
                box-shadow: var(--shadow-lg);
            }
            .mobile-nav.open { transform: translateY(0); opacity: 1; }
            .mobile-nav .nav-link { display: block; padding: 12px 0; border-bottom: 1px solid var(--border-light); font-size: 1.05rem; }
            .mobile-nav .nav-link:last-child { border-bottom: none; }
            .mobile-nav .nav-actions { flex-direction: column; gap: 12px; margin-top: 16px; }
            .mobile-nav .search-box { width: 100%; }
            .mobile-nav .search-box input { width: 100%; }

            .category-hero h1 { font-size: 2.2rem; }
            .category-hero p { font-size: 1rem; }
            .category-hero { padding: 60px 0 40px; min-height: auto; }

            .section { padding: 50px 0; }
            .section-title { font-size: 1.75rem; }
            .section-subtitle { font-size: 1rem; }

            .grid-3 { grid-template-columns: 1fr; gap: 20px; }
            .grid-2 { grid-template-columns: 1fr; gap: 20px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .steps-grid { grid-template-columns: 1fr; gap: 16px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }

            .cta-section h2 { font-size: 1.8rem; }
            .cta-section { padding: 50px 0; }

            .stat-number { font-size: 2rem; }
            .stat-item { padding: 24px 12px; }
        }

        @media (max-width: 520px) {
            .site-header { padding: 0 16px; }
            .container { padding: 0 16px; }
            .logo { font-size: 1.3rem; }
            .logo-icon { width: 34px; height: 34px; font-size: 1rem; }
            .category-hero h1 { font-size: 1.7rem; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .step-item { padding: 20px 12px; }
            .card-body { padding: 18px; }
            .btn { padding: 8px 20px; font-size: 0.9rem; }
            .footer-grid { gap: 20px; }
        }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mt-8 { margin-top: 2rem; }
        .mb-8 { margin-bottom: 2rem; }
        .gap-4 { gap: 1rem; }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .rounded-full { border-radius: 9999px; }
        .shadow-hover:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }

        /* Skeleton for consistency */
        .badge-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            background: rgba(230,57,70,0.1);
            color: var(--primary);
        }

        /* divider */
        .divider { width: 60px; height: 4px; background: var(--primary); border-radius: 4px; margin: 0 auto 1.5rem; }
        .divider-left { margin: 0 0 1.5rem; }

/* roulang page: category3 */
:root {
            --primary: #E63946;
            --primary-light: #FDE8EA;
            --secondary: #1D3557;
            --accent: #F4A261;
            --bg-body: #FFFFFF;
            --bg-section: #F8F9FA;
            --text-body: #212529;
            --text-muted: #6C757D;
            --border-light: #E9ECEF;
            --radius: 0.75rem;
            --radius-lg: 1rem;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-card: 0 4px 20px rgba(0,0,0,0.06);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            color: var(--text-body);
            background: var(--bg-body);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 1rem;
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
        }
        .nav-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 2rem;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 800;
            font-size: 1.5rem;
            color: var(--secondary);
            flex-shrink: 0;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 800;
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.3);
        }
        .logo span {
            color: var(--primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            flex: 1;
            justify-content: center;
        }
        .nav-link {
            padding: 0.5rem 1.1rem;
            border-radius: 8px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-muted);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .nav-link.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 1rem;
            flex-shrink: 0;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-section);
            border-radius: 30px;
            padding: 0.4rem 1rem 0.4rem 1.2rem;
            border: 1px solid var(--border-light);
            transition: var(--transition);
            min-width: 180px;
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.15);
        }
        .search-box .search-icon {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-right: 0.5rem;
        }
        .search-box input {
            border: none;
            background: transparent;
            padding: 0.3rem 0;
            font-size: 0.9rem;
            color: var(--text-body);
            width: 100%;
            min-width: 80px;
        }
        .search-box input::placeholder {
            color: #adb5bd;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.6rem 1.6rem;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.3);
        }
        .btn-primary:hover {
            background: #c41e2b;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.35);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 14px rgba(244, 162, 97, 0.3);
        }
        .btn-accent:hover {
            background: #e08c4a;
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 0.4rem 1.2rem;
            font-size: 0.85rem;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--secondary);
            cursor: pointer;
            padding: 0.3rem;
            border-radius: 8px;
            transition: var(--transition);
        }
        .mobile-toggle:hover {
            background: var(--bg-section);
        }
        @media (max-width: 1024px) {
            .search-box {
                min-width: 120px;
            }
            .nav-link {
                padding: 0.5rem 0.8rem;
                font-size: 0.85rem;
            }
        }
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 1.5rem 1.5rem 2rem;
                gap: 0.5rem;
                border-bottom: 1px solid var(--border-light);
                box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
                z-index: 99;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-link {
                width: 100%;
                padding: 0.8rem 1.2rem;
                font-size: 1rem;
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-link.active {
                background: var(--primary-light);
                border-left: 4px solid var(--primary);
            }
            .nav-actions {
                display: none;
            }
            .nav-actions.mobile-visible {
                display: flex;
                flex-direction: column;
                width: 100%;
                margin-top: 1rem;
                gap: 0.8rem;
            }
            .nav-actions.mobile-visible .search-box {
                width: 100%;
                min-width: unset;
            }
            .nav-actions.mobile-visible .btn {
                width: 100%;
            }
        }
        @media (max-width: 520px) {
            .nav-main {
                height: 64px;
            }
            .logo {
                font-size: 1.2rem;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 1.1rem;
            }
        }

        /* ===== Hero ===== */
        .hero-banner {
            position: relative;
            min-height: 360px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 5rem 2rem 4rem;
            background: linear-gradient(135deg, var(--secondary) 0%, #0F1B2E 100%);
            overflow: hidden;
        }
        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .hero-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 20% 50%, rgba(230, 57, 70, 0.2) 0%, transparent 70%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            padding: 0.4rem 1.4rem;
            border-radius: 30px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 1.5rem;
            letter-spacing: 0.3px;
        }
        .hero-badge i {
            color: var(--accent);
        }
        .hero-banner h1 {
            font-size: 3rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 1.2rem;
            letter-spacing: -0.5px;
        }
        .hero-banner h1 span {
            color: var(--accent);
        }
        .hero-banner p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 640px;
            margin: 0 auto 2rem;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }
        @media (max-width: 768px) {
            .hero-banner {
                min-height: 280px;
                padding: 3.5rem 1.5rem 3rem;
            }
            .hero-banner h1 {
                font-size: 2rem;
            }
            .hero-banner p {
                font-size: 1rem;
            }
        }
        @media (max-width: 520px) {
            .hero-banner h1 {
                font-size: 1.6rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .hero-actions .btn {
                width: 100%;
                max-width: 260px;
            }
        }

        /* ===== Section ===== */
        .section {
            padding: 5rem 0;
        }
        .section-alt {
            background: var(--bg-section);
        }
        .section-header {
            text-align: center;
            margin-bottom: 3.5rem;
        }
        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--secondary);
            margin-bottom: 0.8rem;
            letter-spacing: -0.3px;
        }
        .section-header p {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-header .tag-line {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--primary-light);
            color: var(--primary);
            padding: 0.3rem 1rem;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }
        @media (max-width: 768px) {
            .section {
                padding: 3rem 0;
            }
            .section-header h2 {
                font-size: 1.7rem;
            }
            .section-header p {
                font-size: 0.95rem;
            }
        }

        /* ===== Cards ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }
        .card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            display: block;
        }
        .card-body {
            padding: 1.8rem 1.5rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-tags {
            display: flex;
            gap: 0.5rem;
            flex-wrap: wrap;
            margin-bottom: 0.8rem;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.8rem;
            border-radius: 30px;
            letter-spacing: 0.3px;
        }
        .tag-accent {
            background: #FEF5ED;
            color: var(--accent);
        }
        .tag-secondary {
            background: #E8EEF5;
            color: var(--secondary);
        }
        .card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 0.6rem;
            line-height: 1.4;
        }
        .card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 1.2rem;
        }
        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.85rem;
            color: #adb5bd;
            border-top: 1px solid var(--border-light);
            padding-top: 1rem;
            margin-top: auto;
        }
        .card-meta i {
            margin-right: 0.3rem;
        }
        .card-meta a {
            color: var(--primary);
            font-weight: 600;
        }
        .card-meta a:hover {
            color: #c41e2b;
        }
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
        }
        @media (max-width: 640px) {
            .card-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .card-body {
                padding: 1.2rem 1rem 1rem;
            }
            .card h3 {
                font-size: 1.05rem;
            }
        }

        /* ===== Featured Post ===== */
        .featured-post {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
        }
        .featured-post .fp-img {
            width: 100%;
            height: 100%;
            min-height: 300px;
            object-fit: cover;
            display: block;
        }
        .featured-post .fp-body {
            padding: 2.5rem 2.5rem 2.5rem 0;
        }
        .featured-post .fp-body .fp-tag {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.25rem 1rem;
            border-radius: 30px;
            margin-bottom: 1rem;
            letter-spacing: 0.5px;
        }
        .featured-post .fp-body h2 {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--secondary);
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        .featured-post .fp-body p {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 1.5rem;
        }
        .featured-post .fp-body .fp-meta {
            font-size: 0.85rem;
            color: #adb5bd;
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
        }
        .featured-post .fp-body .fp-meta i {
            margin-right: 0.3rem;
        }
        @media (max-width: 768px) {
            .featured-post {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .featured-post .fp-body {
                padding: 1.8rem 1.5rem;
            }
            .featured-post .fp-body h2 {
                font-size: 1.4rem;
            }
            .featured-post .fp-img {
                min-height: 200px;
                max-height: 280px;
            }
        }

        /* ===== Timeline ===== */
        .timeline {
            position: relative;
            padding-left: 2.5rem;
            max-width: 800px;
            margin: 0 auto;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: linear-gradient(to bottom, var(--primary), var(--accent));
            border-radius: 4px;
        }
        .timeline-item {
            position: relative;
            margin-bottom: 2.5rem;
            padding-left: 1.5rem;
        }
        .timeline-item:last-child {
            margin-bottom: 0;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -2.5rem;
            top: 0.4rem;
            width: 18px;
            height: 18px;
            background: #fff;
            border: 3px solid var(--primary);
            border-radius: 50%;
            box-shadow: 0 0 0 4px rgba(230, 57, 70, 0.15);
        }
        .timeline-item .tl-date {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            margin-bottom: 0.3rem;
        }
        .timeline-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 0.4rem;
        }
        .timeline-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        @media (max-width: 640px) {
            .timeline {
                padding-left: 2rem;
            }
            .timeline-item::before {
                left: -2rem;
                width: 14px;
                height: 14px;
            }
            .timeline-item {
                padding-left: 1rem;
            }
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            text-align: center;
        }
        .stat-item {
            background: #fff;
            border-radius: var(--radius);
            padding: 2rem 1rem;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .stat-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 0.3rem;
        }
        .stat-label {
            font-size: 0.95rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.2rem;
            }
            .stat-number {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1rem;
            }
            .stat-item {
                padding: 1.2rem 0.8rem;
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary) 0%, #0F1B2E 100%);
            padding: 4.5rem 2rem;
            text-align: center;
            border-radius: var(--radius-lg);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 1rem;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin: 0 auto 2rem;
            line-height: 1.7;
        }
        .cta-section .cta-actions {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 3rem 1.5rem;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
            .cta-section .cta-actions {
                flex-direction: column;
                align-items: center;
            }
            .cta-section .cta-actions .btn {
                width: 100%;
                max-width: 260px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.2rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            color: var(--secondary);
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
            gap: 1rem;
        }
        .faq-question:hover {
            background: var(--bg-section);
        }
        .faq-question .faq-icon {
            font-size: 1.2rem;
            color: var(--primary);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 1.5rem 1.2rem;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        @media (max-width: 640px) {
            .faq-question {
                padding: 1rem 1.2rem;
                font-size: 0.9rem;
            }
            .faq-answer {
                padding: 0 1.2rem 1rem;
                font-size: 0.85rem;
            }
        }

        /* ===== Footer (共享) ===== */
        .site-footer {
            background: var(--secondary);
            color: rgba(255, 255, 255, 0.85);
            padding: 4rem 0 0;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 3rem;
            padding-bottom: 2.5rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .site-footer .logo {
            color: #fff;
            margin-bottom: 1rem;
        }
        .site-footer .logo span {
            color: var(--accent);
        }
        .site-footer .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            max-width: 320px;
        }
        .site-footer .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1.2rem;
            letter-spacing: 0.3px;
        }
        .site-footer .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-col ul li {
            margin-bottom: 0.6rem;
        }
        .site-footer .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .site-footer .footer-col ul li a:hover {
            color: var(--accent);
            transform: translateX(4px);
        }
        .site-footer .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1.5rem 0;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
            flex-wrap: wrap;
            gap: 1rem;
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent);
        }
        .site-footer .footer-social {
            display: flex;
            gap: 1rem;
        }
        .site-footer .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .site-footer .footer-social a:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-3px);
        }
        @media (max-width: 768px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
            .site-footer .footer-brand {
                grid-column: span 2;
            }
        }
        @media (max-width: 520px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .site-footer .footer-brand {
                grid-column: span 1;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Subscribe Form ===== */
        .subscribe-form {
            display: flex;
            gap: 0.8rem;
            max-width: 480px;
            margin: 1.5rem auto 0;
        }
        .subscribe-form input {
            flex: 1;
            padding: 0.7rem 1.2rem;
            border-radius: 30px;
            border: 1px solid var(--border-light);
            font-size: 0.9rem;
            background: #fff;
            transition: var(--transition);
        }
        .subscribe-form input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.15);
        }
        .subscribe-form .btn {
            flex-shrink: 0;
        }
        @media (max-width: 520px) {
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form .btn {
                width: 100%;
            }
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: var(--text-muted);
            padding: 1.2rem 0 0;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb span {
            color: var(--primary);
            font-weight: 500;
        }
        .breadcrumb .sep {
            color: #adb5bd;
        }

        /* ===== Filter Bar ===== */
        .filter-bar {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            flex-wrap: wrap;
            padding: 1.5rem 0;
        }
        .filter-btn {
            padding: 0.4rem 1.2rem;
            border-radius: 30px;
            border: 1px solid var(--border-light);
            background: #fff;
            font-size: 0.85rem;
            color: var(--text-muted);
            cursor: pointer;
            transition: var(--transition);
            font-weight: 500;
        }
        .filter-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .filter-btn.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        /* ===== Partner Logo ===== */
        .partner-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            align-items: center;
            justify-items: center;
        }
        .partner-item {
            background: #fff;
            border-radius: var(--radius);
            padding: 2rem 1.5rem;
            border: 1px solid var(--border-light);
            text-align: center;
            width: 100%;
            transition: var(--transition);
            font-weight: 600;
            color: var(--text-muted);
            font-size: 1.1rem;
            letter-spacing: 1px;
        }
        .partner-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-card);
            transform: translateY(-3px);
        }
        @media (max-width: 768px) {
            .partner-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.2rem;
            }
            .partner-item {
                padding: 1.2rem 1rem;
                font-size: 0.95rem;
            }
        }
        @media (max-width: 520px) {
            .partner-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1rem;
            }
        }

        /* ===== Misc ===== */
        .text-primary {
            color: var(--primary);
        }
        .text-secondary {
            color: var(--secondary);
        }
        .text-accent {
            color: var(--accent);
        }
        .gap-1 {
            gap: 0.5rem;
        }
        .gap-2 {
            gap: 1rem;
        }
        .gap-3 {
            gap: 1.5rem;
        }
        .mt-1 {
            margin-top: 0.5rem;
        }
        .mt-2 {
            margin-top: 1rem;
        }
        .mt-3 {
            margin-top: 1.5rem;
        }
        .mb-1 {
            margin-bottom: 0.5rem;
        }
        .mb-2 {
            margin-bottom: 1rem;
        }
        .mb-3 {
            margin-bottom: 1.5rem;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .text-center {
            text-align: center;
        }
        .pill {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.9rem;
            border-radius: 30px;
        }
        .pill i {
            font-size: 0.7rem;
        }
        .divider {
            width: 60px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin: 1rem auto 1.5rem;
        }
        .divider.light {
            background: rgba(255, 255, 255, 0.3);
        }